package org.apache.maven.artifact;

/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *  http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */

import java.util.HashMap;
import java.util.Map;

/**
 * Type safe enumeration for the artifact status field.
 *
 * @author <a href="mailto:brett@apache.org">Brett Porter</a>
 */
public final class ArtifactStatus implements Comparable<ArtifactStatus> {
  /**
   * No trust - no information about status.
   */
  public static final ArtifactStatus NONE = new ArtifactStatus("none", 0);

  /**
   * No trust - information was generated with defaults.
   */
  public static final ArtifactStatus GENERATED = new ArtifactStatus("generated", 1);

  /**
   * Low trust - was converted from the Maven 1.x repository.
   */
  public static final ArtifactStatus CONVERTED = new ArtifactStatus("converted", 2);

  /**
   * Moderate trust - it was deployed directly from a partner.
   */
  public static final ArtifactStatus PARTNER = new ArtifactStatus("partner", 3);

  /**
   * Moderate trust - it was deployed directly by a user.
   */
  public static final ArtifactStatus DEPLOYED = new ArtifactStatus("deployed", 4);

  /**
   * Trusted, as it has had its data verified by hand.
   */
  public static final ArtifactStatus VERIFIED = new ArtifactStatus("verified", 5);

  private final int rank;

  private final String key;

  private static Map<String, ArtifactStatus> map;

  private ArtifactStatus(String key, int rank) {
    this.rank = rank;
    this.key = key;

    if (map == null) {
      map = new HashMap<String, ArtifactStatus>();
    }
    map.put(key, this);
  }

  public static ArtifactStatus valueOf(String status) {
    ArtifactStatus retVal = null;

    if (status != null) {
      retVal = map.get(status);
    }

    return retVal != null ? retVal : NONE;
  }

  public boolean equals(Object o) {
    if (this == o) {
      return true;
    }
    if (o == null || getClass() != o.getClass()) {
      return false;
    }

    final ArtifactStatus that = (ArtifactStatus) o;

    return rank == that.rank;

  }

  public int hashCode() {
    return rank;
  }

  public String toString() {
    return key;
  }

  public int compareTo(ArtifactStatus s) {
    return rank - s.rank;
  }
}
